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  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>11-原型对象中this指向问题</title>
</head>

<body>
  <script>
    function Star(uname, age) {
      this.uname = uname;
      this.age = age;
    }

    Star.prototype.sing = function () {
      console.log("我会唱歌");
      that = this;
    }

    var ldh = new Star("刘德华", 18);

    // 1. 在构造函数中，里面this指向是对象实例 ldh
    ldh.sing();

    // 2. 原型对象函数里面的this指向也是实例对象 ldh
    console.log(that === ldh);
  </script>
</body>

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